SKB iSeries Injection Molded Mil-Standard Waterproof Cases are molded of ultra high-strength polypropylene copolymer resin and feature a gasket-sealed, water- and dust-tight, submersible design. Standard features also include a molded-in hinge, patented trigger release latch system, comfortable, snap-down rubber over-molded cushion grip handles, automatic ambient pressure equalization valve, and resistance to UV, solvents, corrosion, fungus, and impact damage.